Russian standards PDF

Camera lenses. Method for measurement of the image curvature and astigmation

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Heat-resistant bronze. Determination of chromium, nickel, cobalt, iron, zinc, magnesium and titanium by method of atomic-absorption spectrometry

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Bronze fire-resistance. Method for the determination of copper

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Bronze fire-resistance. Method for the determination of chromium

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Bronze fire-resistance. Method for the determination of nickel

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Cerium and its dioxide. Chemical-spectral method of determination of iron, cobalt, manganese, copper and nickel

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